Spring-wheel.



No. 841,130. PATBNTED JAN. 15,1907. C. DOLLINGBR. SPRINGv WHEEL.

APPLICATION FILED BEPT.11,1905.

UNITED STATES PATENT OFFICE. CHARLES DOLLINGER, or BijsZTERoZE-BANYA, AUSTRIA-HUNGARY,

lAS'SIGrNOR OF ONE-HALF TO BLA GLLNER, OF BESZTERCZE- BANYA, COMITAT ZLYOM, AUSTRIA-HUNGARY.

SPRING-WHEEL.

Specification of Letters Patent. Applicatien filed September 11,1905. Serial No. 278.018.

Patented Jan. 15, 190 '7.

This invention relates to improvements in wheels of that class wherein the usual spokes are replaced by springs which connect lthe hub and rim and permit relative movement of one with respect to the other in order to neutralize the jar incident to travel vupon rou hroads. y

` T e invention consists in an improved construction of the rim in cases where the wheel kis used for heavy traffic and also toan improved hub with means for anchoring the construction of spring.

' 'Y The invention will be more fully described in connection with the accompanying drawings and will be more particularly pointed out and ascertained in and by the appended claims.

In the drawings7 Figure 1 is a side elevation, with parts broken away, of a wheel em bodying the main features of my invention. Fig. 2-is a section on line2 2 of Fig. 1. Fig. 3 is a section on line 3 3 of Fig. 4. Fig. 4 is a sectional view on line 4 4 of Fig. 3.

Like characters of reference designate similar parts throughout the different figures of the drawings.

An improved form of wheel according tol mdy invention is shown, which is particularly a apted for heavy trafc, the rim consisting of a laminated construction 27. The laminated strips are of steel and constitute a rim adapted to withstand heavy,A loads and also serving to yieldingly support the loads. It will be obvious that where a construction of this kind is employed for lighter vehicles the nurnber of laminated strips may be reduced according to requirements and uses to .which the wheel is put. In order to render Athe wheel noiseless, thefsame is provided with a tread 28', of rubber, leather, or the like, which, as shown, consists of a flat strip equal in width to the laminated strips.- The rimis connected to the hub 1 by a plurality of springs 4, said being anchored to the rim in the following manner: Blocks or 'fittings`30 are provided with parallel lugs aper- .v

tured to' receive bol-ts 13 and base portions 31, curved in a manner to lie flat upon the inner portion of the wheel-rim. The bases 31 are apertured to receive bolts 26, which exe tend upwardly in the laminated rim to Aor near the outermost strip 2.7 as shown in Fig.

3, said bolts being provided Awith relatively' vthin heads which overhang the innermost laminations, thereby. securing the bolts in place. The inner ends of sai bolts are provided with nuts, whereby the fittings maybe detachably secured to 'the rim.

The springs 4 are preferably of laminated construction comprising a plurality of leaves 4a, provided on their outer ends with enlargements 14, which fit closely between the 1u s of the ittinos 37 and which'are secured inp ace by the belts 13. In order to strengthen the main leaf 4a and also to retain the necessary resiliency, the same is relatively thick near they enlargement 14 and tapers to a spring edge-at its opposite end. The spring 4 are so pro'- vided with a plurality of reinforcing-leaves 4b, which extend from the hub outwardly to a point adjacent to the enlargement 14, each of said leaves4b being preferably of uniform thickness. Said leaves 24h are secured at their outer ends to the leaves 4al inany suitnermost ends of said leaves. 'Said springs" are at t e tread to the hub in order to insure iexure ina single direction and are anchored preferably curved from their mounting' at their. inner ends to the hub 1 in the following manner: The hub 1 is provided with alcentral bore to receive the axle offthe vehicle and with 'an outer annular liange 2, preferably integral with said hub. A removable fiange 3 provided which is screwed or otherwise rigidlyfmounted on the hub with a suitable intervening space for the" reception `of the ends of the springs 4, as clearly shown in'Fig 2.., The springs 4 are adapted to be clamped Ico` - ceive nuts which when turned down pull enlarged ends of the wedge 6 through complemental openings in the ange 3 to retain the' parts in clamping relation. In order to pre-y vvent the innerends of the springs 4 from being radially displaced from their-'clamping position when clamped in place, there -is providedr a lurality of wedge-blocks 11,'1ocated below tlile wedge-bolts 6 and adapted to be engaged thereby,fsaid lwedge-blocks being in-y terposed between the spacing-plates 9 and the inner or main leaf 4a of each set of sprin s7 as lclearly shown in Fig. 1. As the nut of t e l .threaded end 12 is'turned down and the bolt 6 tightened the inclined.\lower face of the bolt 6 forces the wedge-block 11 between the spacing-block vand 'the leaf 4f* ina manner to securely hold the par-ts place.

I claim- 1. Animproved spring-wheel comprising a hubv and tread, a urality of springs yi ingly connecting t e same, each spring 1ncluding a main leaf pivotally connected tothe tread and a plurality of reinforcing-leaves extending from the hub to al oint adjacentto said pivotal connection7 an a clip binding said leaf adjacent to said pivotal connection.

2. An improved spring-wheel comprising a lamina-ted tread and a hub, springs secured to the hubpblocks mounted on said tread,

and bolts extending through said blocks into' the laminated tread, said springs having their outer ends pivotally secured to said blocks,4 '3. An improved spring-wheel comprising a laminated tread and ahub, springs secured to the hub, blocks mounted on said tread, and

bolts extending through said blocks into the laminated tread, said springs having 'their outer ends secured to said blocks.

' 4. An improved spring-wheel comprising a plurality of springs, a liu provided with parallel flanges to receive the springs, and wedge bolts and blocks for holding said springs in position. y

vIn testimony whereof I affix my'signature in the presence of two witnesses.

CHARLES DOLLINGER. Witnesses:

EDMoNn MoHNR, BNI GRNWALD.

ses 

